The Werner Wire Cup Brush is a crimped carbon steel wire brush designed for use with 114 mm angle grinders for surface preparation, cleaning, and light polishing applications. The 0.4 mm crimped wire construction offers greater flexibility than knotted alternatives, making it ideal for removing light surface contaminants, rust, and oxidation from steel, or for roughening concrete and other surfaces before adhesive application. Suitable for electricians, fabricators, maintenance teams, and construction professionals requiring reliable surface preparation equipment.